My BlackBerry PlayBook currently running with BlackBerry Tablet OS 2.0. I don’t like this OS and it is still much buggy as compared to OS 1.8. I want to downgrade it anyhow and I know that it is not difficult. But every time after the downgrade and when I first boot up it is telling me to reapply the upgrade. Without applying the upgrade the playbook does not continue to boot. Is there any way to downgrade it properly?
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